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    • 3. 发明申请
    • VIDEO QUALITY MONITORING
    • 视频质量监控
    • US20120206610A1
    • 2012-08-16
    • US13025558
    • 2011-02-11
    • Beibei WangDekun ZouRan DingTao LiuSitaram BhagavathyNiranjan NarvekarJeffrey A. BloomGlenn L. Cash
    • Beibei WangDekun ZouRan DingTao LiuSitaram BhagavathyNiranjan NarvekarJeffrey A. BloomGlenn L. Cash
    • H04N17/00
    • H04N17/004
    • Systems and methods of perceptual quality monitoring of video information, communications, and entertainment that can estimate the perceptual quality of video with high accuracy, and can be used to produce quality scores that better correlate with subjective quality scores of an end user. The systems and methods of perceptual quality monitoring of video can generate, from an encoded input video bitstream, estimates of one or more quality parameters relating to the video, such as the coding bit rate parameter, the video frame rate parameter, and the packet loss rate parameter, and provide these video quality parameter estimates to a predetermined video quality estimation model. Because the estimates of the video quality parameters are generated from the encoded input video bitstream as it is being received, the systems and methods are suitable for use as QoE monitoring tools.
    • 视频信息,通信和娱乐的感知质量监控的系统和方法可以高精度地估计视频的感知质量,并且可以用于产生与最终用户的主观质量得分更好相关的质量分数。 视频的感知质量监视的系统和方法可以从编码的输入视频比特流中产生与视频相关的一个或多个质量参数的估计,例如编码比特率参数,视频帧速率参数和分组丢失 速率参数,并将这些视频质量参数估计提供给预定的视频质量估计模型。 因为视频质量参数的估计在编码的输入视频比特流被接收时产生,所以系统和方法适合用作QoE监视工具。
    • 5. 发明授权
    • Method of and apparatus for the transmission of high and low priority
segments of a video bitstream over packet networks
    • 通过分组网络传输视频比特流的高优先级和低优先级片段的方法和装置
    • US5481312A
    • 1996-01-02
    • US342404
    • 1994-11-18
    • Glenn L. CashMehmet R. Civanlar
    • Glenn L. CashMehmet R. Civanlar
    • H04L12/56H04L12/64H04N7/173H04N7/26H04N7/50H04N7/12
    • H04N21/434H04L12/6418H04N19/37H04N19/61H04N21/236H04N7/17318H04L2012/6454H04L2012/6464H04L2012/6483
    • Apparatus and method of transmitting a video bitstream from a transmitter over a facility to a receiver, the video bitstream including a plurality of high priority segments and associated low priority segments, is disclosed. The transmitter first transmits high priority information, representative of the high priority segments, of the video bitstream over the facility using a first packet delivery mechanism having a first probability of success and subsequently transmits a low priority partition, including the low priority segments, of the video bitstream over the facility using a second packet deliver mechanism having a second probability of success which is substantially lower than that of the first delivery mechanism. At the receiver, the high priority partition is received and used to generate the high priority segments. When each low priority segment of the low priority partition is received, the associated high priority segment is interleaved in real time with the received low priority segment to create an interleaved video bitstream. The high priority information may be sent as a high priority partition (including the high priority segments), sent as a high priority format (used by the receiver to generate high priority segments), or sent as a high priority identifier (used to identify previously stored high priority segments at the receiver).
    • 公开了一种将视频比特流从设备上的发射机发射到接收机的装置和方法,所述视频比特流包括多个高优先级片段和相关联的低优先级片段。 发射机首先使用具有第一成功概率的第一分组传送机制在设备上发送表示视频比特流的高优先级片段的高优先级信息,并且随后发送包括低优先级片段的低优先级分区 使用具有比第一传送机制的第二概率成功的第二概率成功的第二分组传递机制在设备上的视频比特流。 在接收机处,高优先级分区被接收并用于生成高优先级分段。 当接收到低优先级分区的每个低优先级片段时,相关联的高优先级片段与接收的低优先级片段实时交织以产生交织的视频比特流。 高优先级信息可以作为高优先级分区(包括高优先级段)发送,作为高优先级格式发送(由接收机用于生成高优先级段),或作为高优先级标识符发送(用于先前识别 在接收器处存储高优先级段)。
    • 6. 发明授权
    • Multipoint digital video communication system
    • 多点数字视频通信系统
    • US5481297A
    • 1996-01-02
    • US201871
    • 1994-02-25
    • Glenn L. CashMehmet R. CivanlarRobert D. GaglianelloDonald B. Swicker
    • Glenn L. CashMehmet R. CivanlarRobert D. GaglianelloDonald B. Swicker
    • H04N7/32H03M7/30H04N7/14H04N7/15H04N7/26H04N7/46H04N7/50H04N7/24
    • H04N7/15H04N19/00H04N19/59H04N19/61H04N7/152H04N19/39
    • The described video communication system incorporates multiple window display. One or more video transmission nodes provide macroblocks of video data available in a plurality of resolution levels. The transmission node encodes the macroblocks and assigns macroblock identifiers (IDs) to each macroblock. A receiving node receives a plurality of video sequences from a plurality of transmission nodes through a communication network. The receiving node thereafter eliminates macroblocks of video data that will not be displayed, such as in the case of portions of video that are hidden or overlapped. A macroblock translator also transforms the macroblock ID to a new macroblock ID which reflects the macroblock's position on the display screen as dictated by the user's window configuration. A decoder thereafter decompresses the video data one macroblock at a time, and provides the decompressed macroblock to a frame buffer. The frame buffer provides the window configured video data to a display.
    • 所描述的视频通信系统包括多个窗口显示。 一个或多个视频传输节点提供以多个分辨率级别可用的视频数据的宏块。 发送节点对宏块进行编码,并向每个宏块分配宏块标识符(ID)。 接收节点通过通信网络从多个传输节点接收多个视频序列。 接收节点此后消除了不会显示的视频数据的宏块,例如在隐藏或重叠的视频的部分的情况下。 宏块翻译器还将宏块ID转换为按照用户的窗口配置所指示的宏块在显示屏幕上的位置的新宏块ID。 解码器一次解压缩视频数据一个宏块,并将解压缩的宏块提供给帧缓冲器。 帧缓冲器将窗口配置的视频数据提供给显示器。
    • 7. 发明授权
    • Video quality monitoring
    • 视频质量监控
    • US08885050B2
    • 2014-11-11
    • US13025558
    • 2011-02-11
    • Beibei WangDekun ZouRan DingTao LiuSitaram BhagavathyNiranjan NarvekarJeffrey A. BloomGlenn L. Cash
    • Beibei WangDekun ZouRan DingTao LiuSitaram BhagavathyNiranjan NarvekarJeffrey A. BloomGlenn L. Cash
    • H04N17/00
    • H04N17/004
    • Systems and methods of perceptual quality monitoring of video information, communications, and entertainment that can estimate the perceptual quality of video with high accuracy, and can be used to produce quality scores that better correlate with subjective quality scores of an end user. The systems and methods of perceptual quality monitoring of video can generate, from an encoded input video bitstream, estimates of one or more quality parameters relating to the video, such as the coding bit rate parameter, the video frame rate parameter, and the packet loss rate parameter, and provide these video quality parameter estimates to a predetermined video quality estimation model. Because the estimates of the video quality parameters are generated from the encoded input video bitstream as it is being received, the systems and methods are suitable for use as QoE monitoring tools.
    • 视频信息,通信和娱乐的感知质量监控的系统和方法可以高精度地估计视频的感知质量,并且可以用于产生与最终用户的主观质量得分更好相关的质量分数。 视频的感知质量监视的系统和方法可以从编码的输入视频比特流中产生与视频相关的一个或多个质量参数的估计,例如编码比特率参数,视频帧速率参数和分组丢失 速率参数,并将这些视频质量参数估计提供给预定的视频质量估计模型。 因为视频质量参数的估计在编码的输入视频比特流被接收时产生,所以系统和方法适合用作QoE监视工具。